Saint Lucia vs Saint Lucia

Saint Lucia and Saint Lucia both are nouns.

Word	Noun	Adjective	Verb	Adverb
Saint Lucia	Yes	No	No	No
Saint Lucia	Yes	No	No	No

Saint Lucia (noun)	Saint Lucia (noun)
a country on the island of Saint Lucia; gained independence from Great Britain in 1979	a country on the island of Saint Lucia; gained independence from Great Britain in 1979
a volcanic island in the Windward Isles to the south of Martinique	a volcanic island in the Windward Isles to the south of Martinique